0 a microphone (= a device you speak into to make your voice louder or to record your voice) that is switched on, especially without the speaker realizing:
1 recorded on a microphone that is switched on, especially without the speaker realizing, or relating to comments or conversations heard in this way:
The candidate was heard on hot mic joking with his rival about his arm gestures at debate.
A hot mic picked up the unmistakable sound of giggles as the news network abruptly cut away from the president's speech.
Their conversation was picked up by some hot mikes.
The premier's hot-mic comments caused consternation in Canada.
Hot mic moments have heaped embarrassment on politicians across the globe.
He apologized for any hurt or harm his hot-mike conversation might have caused.
